EP0441664A1 - Reinigungsmittel auf Basis von 1,1-Dichlor-1-Fluorethan, Methylformiat und Methanol - Google Patents

Reinigungsmittel auf Basis von 1,1-Dichlor-1-Fluorethan, Methylformiat und Methanol Download PDF

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Publication number
EP0441664A1
EP0441664A1 EP19910400009 EP91400009A EP0441664A1 EP 0441664 A1 EP0441664 A1 EP 0441664A1 EP 19910400009 EP19910400009 EP 19910400009 EP 91400009 A EP91400009 A EP 91400009A EP 0441664 A1 EP0441664 A1 EP 0441664A1
Authority
EP
European Patent Office
Prior art keywords
methanol
fluoroethane
dichloro
methyl formate
composition according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
EP19910400009
Other languages
English (en)
French (fr)
Inventor
Daniel Desbiendras
Jean-Jacques Martin
Pascal Michaud
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Arkema France SA
Original Assignee
Elf Atochem SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Elf Atochem SA filed Critical Elf Atochem SA
Publication of EP0441664A1 publication Critical patent/EP0441664A1/de
Ceased legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G5/00—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents
    • C23G5/02—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents
    • C23G5/028—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents containing halogenated hydrocarbons
    • C23G5/02809—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents containing halogenated hydrocarbons containing chlorine and fluorine
    • C23G5/02825—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents containing halogenated hydrocarbons containing chlorine and fluorine containing hydrogen
    • C23G5/02829—Ethanes
    • C23G5/02832—C2H3Cl2F
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/50—Solvents
    • C11D7/5036—Azeotropic mixtures containing halogenated solvents
    • C11D7/5068—Mixtures of halogenated and non-halogenated solvents
    • C11D7/5077—Mixtures of only oxygen-containing solvents
    • C11D7/5086—Mixtures of only oxygen-containing solvents the oxygen-containing solvents being different from alcohols, e.g. mixtures of water and ethers

Definitions

  • the present invention relates to the field of chlorofluorinated hydrocarbons and more particularly relates to a new composition having an azeotrope and usable as an agent for cleaning and degreasing solid surfaces, in particular in defluxing and cold cleaning of printed circuits.
  • F113 is one of the fully halogenated chlorofluorocarbons that are currently suspected of attacking or degrading stratospheric ozone.
  • the present invention proposes to replace the compositions based on F113 with a new composition based on methyl formate, methanol and 1,1-dichloro-1-fluoroethane.
  • the latter compound known in the art under the designation F141b, is practically devoid of destructive effect with respect to ozone.
  • the composition to be used according to the invention comprises from 55 to 79.5% by weight of F141b, from 20 to 40% of methyl formate, and from 0.5 to 5% of methanol.
  • F141b azeotrope whose boiling point is 28.3 ° C at normal atmospheric pressure (1.013 bar) and the composition according to the invention has a pseudo-azeotropic behavior, that is to say that the composition of the phases vapor and liquid is substantially the same, which is particularly advantageous for the intended applications.
  • the content of F141b is chosen between 65 and 75% by weight, that of methyl formate between 24 and 31.5% by weight, and that of methanol between 1 and 3.5% by weight.
  • the azeotrope F141b / methyl formate / methanol is a positive azeotrope since its boiling point (28.3 ° C) is lower than that of the constituents (F141b: 32 ° C; methyl formate: 31.7 ° C; methanol: 65 ° C).
  • the composition according to the invention can be advantageously stabilized against hydrolysis and / or free radical attacks likely to occur in the cleaning processes, by adding to it a usual stabilizer such as, for example , nitromethane, propylene oxide or a mixture of these compounds, the proportion of stabilizer possibly ranging from 0.01 to 5% relative to the total weight: F141b - methyl formate - methanol.
  • a usual stabilizer such as, for example , nitromethane, propylene oxide or a mixture of these compounds, the proportion of stabilizer possibly ranging from 0.01 to 5% relative to the total weight: F141b - methyl formate - methanol.
  • composition according to the invention can be used in the same applications and according to the same techniques as the previous compositions based on F113.
  • This azeotrope used for cleaning solder flux or degreasing mechanical parts, gives as good results as compositions based on F113 and methanol.
  • Example 3 is repeated using 0.1% nitromethane and 0.1% propylene oxide. The following results are obtained:

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Metallurgy (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Detergent Compositions (AREA)
  • Manufacturing Of Printed Wiring (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
EP19910400009 1990-02-07 1991-01-03 Reinigungsmittel auf Basis von 1,1-Dichlor-1-Fluorethan, Methylformiat und Methanol Ceased EP0441664A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9001396 1990-02-07
FR9001396A FR2657877B1 (fr) 1990-02-07 1990-02-07 Composition nettoyante a base de 1,1-dichloro-1-fluoroethane, de formiate de methyle et de methanol.

Publications (1)

Publication Number Publication Date
EP0441664A1 true EP0441664A1 (de) 1991-08-14

Family

ID=9393454

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910400009 Ceased EP0441664A1 (de) 1990-02-07 1991-01-03 Reinigungsmittel auf Basis von 1,1-Dichlor-1-Fluorethan, Methylformiat und Methanol

Country Status (5)

Country Link
US (1) US5152913A (de)
EP (1) EP0441664A1 (de)
JP (1) JPH06207198A (de)
CA (1) CA2035364A1 (de)
FR (1) FR2657877B1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2657876B1 (fr) * 1990-02-07 1992-05-15 Atochem Composition nettoyante a base de 1,1-dichloro-1-fluoroethane et de formiate de methyle.
FR2676066B1 (fr) * 1991-05-02 1993-07-23 Atochem Composition a base de 1,1-dichloro-1-fluoroethane, de 1,1,1,3,3-pentafluorobutane et de methanol, pour le nettoyage et/ou le sechage de surfaces solides.

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4816174A (en) * 1988-05-03 1989-03-28 Allied-Signal Inc. Azeotrope-like compositions of 1,1-dichloro-1-fluoroethane, methanol and nitromethane
EP0325265A1 (de) * 1988-01-20 1989-07-26 E.I. Du Pont De Nemours And Company Azeotrope Mischungen von 1,1-Dichlor-1-fluorethan und Methanol/Ethanol

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2101993A (en) * 1932-04-30 1937-12-14 Gen Motors Corp Refrigerant mixture and the method of using the same
US3607755A (en) * 1968-11-25 1971-09-21 Allied Chem Novel halocarbon compositions
US3914191A (en) * 1974-07-31 1975-10-21 Union Carbide Corp Methyl format E-trichloromonofluoromethane blowing agent for polystyrene
JPS5629529A (en) * 1979-08-16 1981-03-24 Tokuyama Soda Co Ltd Stabilization of methylene chloride
US4483917A (en) * 1983-02-14 1984-11-20 The Dow Chemical Company Photoresist stripper composition and method of use
US4438192A (en) * 1983-02-14 1984-03-20 The Dow Chemical Company Photoresist stripper composition and method of use
JP2550622B2 (ja) * 1987-11-19 1996-11-06 旭硝子株式会社 ドライクリーニング用洗浄剤
JPH01139780A (ja) * 1987-11-27 1989-06-01 Asahi Glass Co Ltd バフ研磨洗浄剤
US4842764A (en) * 1988-05-03 1989-06-27 Allied-Signal Inc. Azeotrope-like compositions of 1,1-dichloro-1-fluoroethane and methanol
US4804493A (en) * 1988-05-24 1989-02-14 E. I. Du Pont De Nemours And Company Stabilized azeotrope or azeotrope-like composition of 1,1,2-trichloro-1,2,2-trifluoroethane and trans-1,2-dichloroethylene
US4836947A (en) * 1988-06-09 1989-06-06 Allied-Signal Inc. Azeotrope-like compositions of 1,1-dichloro-1-fluoroethane and ethanol
US4960804A (en) * 1989-03-09 1990-10-02 Mobay Corporation Rigid foams using blends of chlorofluorocarbons and alkyl alkanoates as blowing agent
US4945119A (en) * 1989-05-10 1990-07-31 The Dow Chemical Company Foaming system for rigid urethane and isocyanurate foams
WO1991013966A1 (en) * 1990-03-12 1991-09-19 E.I. Du Pont De Nemours And Company Binary azeotropes of hydrogen-containing halocarbons with methyl formate

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0325265A1 (de) * 1988-01-20 1989-07-26 E.I. Du Pont De Nemours And Company Azeotrope Mischungen von 1,1-Dichlor-1-fluorethan und Methanol/Ethanol
US4816174A (en) * 1988-05-03 1989-03-28 Allied-Signal Inc. Azeotrope-like compositions of 1,1-dichloro-1-fluoroethane, methanol and nitromethane

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
CHEMICAL ABSTRACTS, vol. 95, 1981, page 693, abrégé no. 43331a, Columbus, Ohio, US; & JP-A-81 29 529 (TOKUYAMA SODA CO., LTD) 24-03-1981 *

Also Published As

Publication number Publication date
FR2657877B1 (fr) 1992-05-15
CA2035364A1 (fr) 1991-08-08
US5152913A (en) 1992-10-06
FR2657877A1 (fr) 1991-08-09
JPH06207198A (ja) 1994-07-26

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